RAR archive of 936 KB for the Huawei Honor 8A, with the contents not described in the name. At this size it most likely holds schematic or layout pages rather than a full firmware package, but open it to confirm. Repair documents for this phone help trace the battery and charging circuitry, PMIC supply rails, and display connector lines when diagnosing a dead or non-charging unit. The Honor 8A was sold under several JAT model codes, so verify yours before following part numbers.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @esquematicosparatodos. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.